Which substance will most likely ionize when it is dissolved in water? hbr cabr2 mgcl2 kcl

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

How many moles of gas are present if p=11 atm, v=12l, t=185k?

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)